Web splicing device



ay- 5, 1936. I TORNBERG 2,939,463

WEB SPLICING DEVICE Filed Aug. 25, 1932 2 sheets-sheet 1 May 5 T NBE GWEB SPLICING DEVICE Filed Aug. 2 5, 11932 2 Sheets-Sheet 2 C3; Ki? 7 373 7 W Patented May 5, 1936 UNE'E'E STATES PATENT orries WEB SPLICINGDEVICE Application August 25, 1932, Serial No. 630,357

5 Claims.

This invention relates to mechanism for splicing a new web roll to arunning web without any diminution in the speed of the press and isespecially adaptable for the type of roll support used in newspaperprinting presses.

The principal objects of the invention are to provide means for coveringand protecting the forward. glued end of the web on a fresh web rollwhile it is being rotated up to Web speed. so that it will not come intocontact with the running Web or any surface propelling device ortransfer any of the glue thereto; to provide a shield for the abovementioned purpose which will rotate with the fresh roll and insynchronism therewith so as to keep the forward glued end covered; toprovide means by which, when the pasting is about to be accomplished,the shield is automatically moved at 'a speed different from that of thesurface of the fresh web roll to expose the glued edge for splicing, andto provide means for stopping the shield during the next revolution ofthe fresh web roll.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 isan end view of a well known type of roll supporting reel with apreferred embodiment of this invention applied thereto;

Fig. 2 is an elevation of the same, partly in section;

Fig. 3 is a plan of the shield operating device, partly in section on ahorizontal plane;

Fig. 4 is a detail view of the means for rotating the shield, first atroll speed and afterwards at a higher speed, and

Fig. 5 is an enlarged view of the shield as shown in Fig. 3.

The invention is shown as applied to a reel com prising two pedestals Hiand two spiders II which have arms projecting therefrom and whichsupport two or more web rolls at the same time. In this case a runningroll A is shown nearly exhausted and a fresh roll B rotating at webspeed. The spiders I i are supported on a cross shaft |2 as usual andfixed to the same.

Three gears l5 are shown on the three arms of the reel, one fixed toeach of the spindles |6 on which the web rolls are mounted. The freshroll is rotated at web speed by any known means but preferably bycontact with running web W, rotating the gear l5.

On each of the spindles l6 on both sides of the machine are mounted armsThese arms are not keyed to the spindles but are adapted to rotateindependently thereof and are mounted on the spindles by means ofbushings.

Frictionally secured to the hubs of the arms I! on one side of themachine is a gear I8. The gear l5 meshes with a pinion I9 and the gearl8 with a pinion 20. These pinions are rotatably mounted on a parallelshaft 2|. A pair of opposite clutches 22 and 23 are shown having acentral member which can be shifted in either direction and in eithercase will clutch one of the pinions to the shaft 2|. This clutch isoperated by a pair of solenoids 24 and 25, either one of which can beenergized for shifting the cone clutch one way or the other.

In the normal operation, the cone clutch is shifted to the left so thatthe gear I5 drives the shaft 2| through gear l9. Through gears and I8the arms H are driven. On the two arms IT at the opposite ends of theroll is mounted a shield 26. This shield is originally placed, as shownin Fig. 5, over the end of the Web on the roll B, which is supplied withspots of glue or paste ready for the pasting operation. The parts are sotimed that in the normal operation this shield will rotate just as fastas the roll and virtually remain in the position relative to the rollshown in Figs. 2 and 5, shielding this adhesive from contact with thetension belts 35 or the web W, which is pressed against the roll B bythese belts.

Splined on the spindle I6 is a gear 21 which drives a gear 28. This gearis loose on the shaft 2| and has on it one of the clutch sectionscooperating with the'clutch 23. Now when the solenoid 25 is energizedthis clutch is moved to the right and the gear I8 and arm I! are rotatedby the gear 21. The gear 2'! is larger than the gear H5, or at least thegear ratio is such as to drive this arm I! at a higher or lower rate ofspeed than that with which it has previously been driven so as to moveit away from the pasting spots on the roll B and expose the pastedsurface for splicing. Preferably it is driven faster than normally.

When the arm I! moves around to the dotted line position in Fig. 1, asolenoid on a small bracket on the spider is energized so as to pull upa stop 3| in the path of a pin 32 on the arm As this arm is frictionallymounted to gear IB it is stopped in this position and does not comearound again into contact with the belts or web. Also on the arm I! is afric- 5) tion surface 33 which engages an end 34 on the lever on the armon which the stop 3| is mounted to slow down the arm before it reachesthe stop and prevent or reduce the shock of the impact. Just aftersplicing, solenoids 24 and 25 are deenergized to disconnect clutches 22or 23 and thereby assist in stopping arm H.

The shield extends from one end of the roll to the other. It is providedwith adjusting bolts and slots 36 to adjust it to rolls of difierentdiameters. In the under side of the shield are spaces 31 for receivingthe pasted spots, the other portions of the web being held firmlyagainst the roll by the projecting portions between the spaces.

The method of operating the solenoids is not shown by a wiring diagramor otherwise because it is obvious that the solenoid 24 can be operatedby a single push button and anyone well versed in the art could soconnect solenoids 25 and 30 as to have them operate in the propersequence. The manner in which this is done does not constitute a part ofthis invention.

It will be obvious, of course, that the roll A and the fresh roll on thethird pair of arms can be connected up in the same way because it isimmaterial in the latter case whether the shield is operated or not andin the case of the roll A the shield will be held against the stop toprevent it from rotating. Of course, the shield has to be placed in theright position before pasting so as to start it correctly.

I have not shown the details of construction mounted on two of the armsof the spider but it will be understood that they are all equipped inthe same manner. The shield not only prevents the exposing of the freshglue but also prevents the forward edge of the paper on the roll B frombecoming loose.

It will be seen that this shield furnishes a means for accomplishingthese two objects and fully protects the glued edge at all times exceptwhen it is time to make the paster.

Although I have illustrated and described only one form of theinvention, I am aware of the fact that modifications can be made thereinby any person skilled in the art without departing from the scope of theinvention as expressed in the claims. Therefore, I do not wish to belimited in this respect, otherwise than as set forth in the claims, butwhat I do claim is:-

1. In a web splicing device, the combination with means for supporting afresh web roll, of a pair of arms rotatably supported on the spindlessupporting the web roll, positive means for rotating said arms at thesame speed as that of the roll, a shield supported at its opposite endsby said arms and adapted to cover the pasted surface of the roll, andmeans whereby when a paster is to be made the shield can be rotatedfaster than the roll to expose the pasted surface.

2. In a web pasting device, the combination with a spindle forsupporting a web roll, a shaft, two pinions loose on the shaft, a gearfixed on the shaft, a clutch keyed to the shaft and adapted to be movedinto two positions, in one of which it fixes the first pinion to theshaft and in the other of which it fixes the second pinion to the shaft,means for driving the shaft from the spindle, and an arm carrying ashield loosely mounted on the spindle and operated by the gear.

3. In a web pasting device, the combination with a spindle forsupporting a web roll, a gear fixed to said spindle and rotating withthe web roll, a shaft at one side of said spindle, two pinions loose onthe shaft, a gear fixed on the shaft, a clutch keyed to the shaft andadapted to be moved into two positions, in one of which it fixes thefirst pinion to the shaft and in the other of which it fixes the secondpinion to the shaft, a second gear, of a size different from the firstgear, fixed on the spindle meshing with the last named pinion, a gearloose on the spindle and meshing with the gear on the shaft, and an armcarrying a shield loosely mounted on the spindle and frictionallyconnected to the last named gear.

4. The combination with a supporting device for a. plurality of webrolls, of an arm adapted to turn on the axis of a web roll, a shieldcarried by the arm and extending throughout the length of the web rollfor covering the pasted edge of the web while it is being brought up tospeed, means for moving said shield at a higher speed away from thepasted edge when the paster is to be made, a pin on said arm, a movablestop carried by the supporting device, and a solenoid for moving themovable stop into the path of said pin to stop the arm before it hascompleted one revolution at a higher rate of speed than the roll.

5. A shield for a web roll, pivotally mounted and arranged to cover alongitudinal surface on the web roll, and having a plurality of recesseson the side next to the roll for receiving the pasted spots on the roll.

ISIDOR TORNBERG.

